1986: The Canadian government and Purdy's Wharf
Development, Ltd. deployed a small diameter pipeline to a depth of less
than 100' ft. Total investment for this project was $200,000. The
project was very successful and savings were identified in the following
areas: a saving of $50-60,000 per year in avoided electrical cost, fewer
maintenance staff, reduction in fresh water, savings in water treatment,
and savings in cooling tower maintenance and replacement. The financial
result in terms of a simple payback period was two years. Today, Purdy's
Wharf continues to successfully utilize an expanded seawater air
conditioning system for their waterfront properties.

Please note that Makai was not involved in the design process of this system. It is included as a good example of SWAC technology.